<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>

	<%
		String flag = request.getParameter("flag");
		String n1 = request.getParameter("n1");
		String n2 = request.getParameter("n2");
		
		System.out.println(n1+":"+n2+":"+flag);
		
		int a = Integer.parseInt(n1);
		int b = Integer.parseInt(n2);
		int n3 = 0;
		
		if("+".equals(flag)){
			n3 = a+b;
		}
		else if("-".equals(flag)){
			n3 = a-b;
		}
		else if("*".equals(flag)){
			n3 = a*b;
		}
		else if("/".equals(flag)){
			n3 = a/b;
		}
		
		System.out.println(n3);
		request.setAttribute("n3", n3);
		request.getRequestDispatcher("calc.jsp").forward(request,response);
		
	%>
	
</body>
</html>